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fix(nimble): Add support for shorter connection interval

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This commit is contained in:
Rahul Tank
2026-04-29 17:42:43 +05:30
parent 0139d977c1
commit 0364c41e59
3 changed files with 19 additions and 5 deletions
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nimble/host/src/ble_gap.c
+4 -3
View File
@@ -7591,12 +7591,12 @@ ble_gap_check_conn_params(uint8_t phy, const struct ble_gap_conn_params *params)
}
}
/* Check connection interval min */
if ((params->itvl_min < BLE_HCI_CONN_ITVL_MIN) ||
if ((params->itvl_min < BLE_HOST_CONN_PARAM_ITVL_MIN) ||
(params->itvl_min > BLE_HCI_CONN_ITVL_MAX)) {
return BLE_ERR_INV_HCI_CMD_PARMS;
}
/* Check connection interval max */
if ((params->itvl_max < BLE_HCI_CONN_ITVL_MIN) ||
if ((params->itvl_max < BLE_HOST_CONN_PARAM_ITVL_MIN) ||
(params->itvl_max > BLE_HCI_CONN_ITVL_MAX) ||
(params->itvl_max < params->itvl_min)) {
return BLE_ERR_INV_HCI_CMD_PARMS;
@@ -8976,7 +8976,8 @@ ble_gap_validate_conn_params(const struct ble_gap_upd_params *params)
return false;
}
if (params->itvl_min < 0x0006 || params->itvl_max > 0x0C80) {
if (params->itvl_min < BLE_HOST_CONN_PARAM_ITVL_MIN ||
params->itvl_max > BLE_HCI_CONN_ITVL_MAX) {
return false;
}
nimble/host/src/ble_hs_hci_evt.c
+2 -2
View File
@@ -1848,7 +1848,7 @@ ble_hs_hci_evt_le_conn_upd_complete(uint8_t subevent, const void *data,
}
if (ev->status == 0) {
BLE_HS_DBG_ASSERT(le16toh(ev->conn_itvl) >= BLE_HCI_CONN_ITVL_MIN);
BLE_HS_DBG_ASSERT(le16toh(ev->conn_itvl) >= BLE_HOST_CONN_PARAM_ITVL_MIN);
BLE_HS_DBG_ASSERT(le16toh(ev->conn_itvl) <= BLE_HCI_CONN_ITVL_MAX);
BLE_HS_DBG_ASSERT(le16toh(ev->conn_latency) >= BLE_HCI_CONN_LATENCY_MIN);
@@ -1888,7 +1888,7 @@ ble_hs_hci_evt_le_conn_parm_req(uint8_t subevent, const void *data, unsigned int
return BLE_HS_ECONTROLLER;
}
BLE_HS_DBG_ASSERT(le16toh(ev->min_interval) >= BLE_HCI_CONN_ITVL_MIN);
BLE_HS_DBG_ASSERT(le16toh(ev->min_interval) >= BLE_HOST_CONN_PARAM_ITVL_MIN);
BLE_HS_DBG_ASSERT(le16toh(ev->max_interval) <= BLE_HCI_CONN_ITVL_MAX);
BLE_HS_DBG_ASSERT(le16toh(ev->max_interval) >= le16toh(ev->min_interval));
nimble/include/nimble/hci_common.h
+13
View File
@@ -1825,7 +1825,20 @@ struct ble_hci_vs_set_event_mask_cp {
#define BLE_HCI_CONN_FILT_NO_WL (0)
#define BLE_HCI_CONN_FILT_USE_WL (1)
#define BLE_HCI_CONN_FILT_MAX (1)
/* Bluetooth Core Spec minimum connection interval (7.5 ms in 1.25 ms units). */
#define BLE_HCI_CONN_ITVL_MIN (0x0006)
/* Host-side validation floor for connection interval (1.25 ms units). When
* CONFIG_BT_BLE_HOST_ALLOW_SUB_SPEC_MIN_CONN_INT is enabled, the host accepts
* sub-spec intervals and defers the real lower bound to the controller; 0x0001
* is used instead of 0 so uint16_t range checks stay well-defined under
* -Wtype-limits. For spec-visible values (e.g. PPCP) use BLE_HCI_CONN_ITVL_MIN.
*/
#if defined(CONFIG_BT_BLE_HOST_ALLOW_SUB_SPEC_MIN_CONN_INT) && \
(CONFIG_BT_BLE_HOST_ALLOW_SUB_SPEC_MIN_CONN_INT)
#define BLE_HOST_CONN_PARAM_ITVL_MIN (0x0001)
#else
#define BLE_HOST_CONN_PARAM_ITVL_MIN BLE_HCI_CONN_ITVL_MIN
#endif
#define BLE_HCI_CONN_ITVL_MAX (0x0c80)
#define BLE_HCI_CONN_LATENCY_MIN (0x0000)
#define BLE_HCI_CONN_LATENCY_MAX (0x01f3)